The optional Exterior Feeder System is another innovative feature of Caitec™ Featherland Paradise® Cages. The system is designed to improve your pet’s health and well being, reduce time spent cleaning, and allow anyone to safely change the food and water. Protects food and water from bird droppings. Reduces cross contamination of food and water. Helps control spillage of food and water on the floor. Allows anyone to safely change the food and water. Increases inside cage space. Dishwasher-safe stoneware crocks. Simple Installation: Remove original feeder door. Insert the feeder frame into 4 holes in door opening. Slide clear polycarbonate shroud/cover into place. Insert cup. A tamper-proof locking pin holds cover securely in place.